The internet is essentially many networks connected together. Users then connect to the internet using either dial-up networking or newer digital technologies. In either case, these services are provided by an Internet Service Provider(ISP). The ISP also will assign your computer a unique IP address and provide email and Newsgroup services.
- Root Level Domains - The top of the tree.
- Top Level Domains - These are divided into
different categories. Com, net, mil, edu, org and gov are the most common.
- Second Level Domains - These domains make up the
rest of networks as all sub-domains are categorized under this heading. So
if you visit Intel's site, you are visiting the sub-domain intel.com.
Within intel.com many other sub-domains may also exist.
- Hosts - Hosts are the final level in the
hierarchy as they are the individual computers that occupy or comprise a
domain and are where the web pages are located.
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